diff --git a/fortuna.h b/fortuna.h
index 9fadd39..04c7745 100644
--- a/fortuna.h
+++ b/fortuna.h
@@ -16,7 +16,7 @@
 
 namespace fortuna {
 
-class Fortuna {
+class Fortuna final {
 public:
 	static constexpr const char NUM_OF_POOLS{32};
 	std::mutex mtx;